.a {
  width: 15vw;
  height: 4vw;
  font-size: 5vw;
}

.item {
  border: 1px gray solid;
  width: 2vw;
  height: 3vw;
  font-size: 2vw;
  padding-left: 1vw;
}

.contect {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  width: 18vw;
}
